BLM 1.3 reserve tank overflowing

Discussion in 'Proton' started by gunnerzz, Dec 2, 2019 at 11:01 AM.

  1. gunnerzz

    gunnerzz 5 Year | Silver

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    Guys, as the title suggest...why does the reserve tank overflowing?

    A bit of history lesson;
    I havent drive the car for 2 weeks and on saturday i drive it casually to fuel up and everything is normal including the temp. When i reached home i open the hood while the engine is off to inspect the battery and notices there is coolant smell and realize coolant is overflowing from the reserve tank. It was less than 1/2 small mineral water bottle.


    Yesterday i drive the car again. Everything is normal and the coolant does not overflow. I have been using Proton coolant all this while and changing it at about 40k km. Water pump is replaced during last timing belt change and it got another 40k km to go. Radiator cap looks good to me. So far no milky substance on both oil filler cap and radiator cap.

    Is it something wrong or just an isolated case?
     
  2. Izso

    Izso Boooooossst
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    I think it's normal right? hence the hose from the overflow to the atmosphere. Perhaps it just got really hot?
     
  3. gunnerzz

    gunnerzz 5 Year | Silver

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    Its overflowing out of the reserve tank.
    Saturday was colder than usual and i was driving with aircond off.

    I always put coolant in the tank up to the marking.

    If normal then i can sleep peacefully as just spent salary towards reviving my waja.
     
  4. brokenjars

    brokenjars 5 Year | Silver

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    Previously did you top up the water tank before driving? Anyway i think its normal. If you open your radiator cap and water is still inside, means its ok.
     
  5. gunnerzz

    gunnerzz 5 Year | Silver

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    Nope, havent touched the car for 2 weeks and befote i left it, level was nicely at the 'max' mark.

    Watet is still inside the radiator.

    TQ for the inputs, i just treat this as a one off incident then
     
  6. vr2turbo

    vr2turbo 5 Year | Silver
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    As long as the reserve tank goes back to full mark when cold means water is going back into the radiator, and that means your cap is ok. Just monitor a few more rounds....
     
  7. ^pomen_GTR^

    ^pomen_GTR^ Senior Member
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    check coolant level in the actual radiator at radiator cap...

    if coolant is full there.. no worries....

    if low or not visible on top...then might be better to check the cooling system...first thing first i would say to check the thermostat... saga blm have known stuck thermostat issue on for older cars...
     

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